Airport Bombing

June 21, 1985

FRANKFURT, WEST GERMANY — ''There is absolutely no clear motive or target for the attack.'' Reinhard Rochus of the Frankfurt prosecutor's office was talking about Wednesday's explosion at the Frankfurt airport that killed three people. Sought: A young man seen driving away from the airport at high speed. Rochus discounted calls by people claiming to be members of the Red Army Faction who said the ultraleftist group was responsible. The explosion happened ''in a manner that is not typical for this group,'' Rochus said.